Get Best Liberty University NASC 210 Exam 4 

Get Best Liberty University NASC 210 Exam 4

1. The human male is considered hemizygous for X-linked traits because he only has one set of X-linked genes.
2. The mechanism of genomic imprinting involves:
3. The SRY gene found on the X chromosome causes the unborn baby to develop into a girl.
4. At the chromosome levels, males are homogametic.
5. In general, there is no male-to-male transmission of X-linked traits.
6. In the U.S. the “sex ratio” of males to females drops significantly from birth to age 65.
7. Cardiovascular disease affects:
8. Biologically gender is determined genetically at;
9. Which of the following hunger response hormones decreases appetite but increases digestion?
10. Considering color detection humans are classified as (hint: How many primary colors can we see)?
11. Simple mendelian single-gene genetics explains skin color.
12. More than 100 genes affect pigmentation in skin hair and irises.
13. Which of the following is true about the “X” and “Y” chromosomes?
14. Which of the following is true about homosexuality?
15. Which of the following is true about the rare condition of males who are XX and females who are XY:
16. Even though Mendel’s laws are very helpful to understanding genetics, simple mendelian genetics does not explain well most of the genetics because;
17. Melanocytes contribute to skin color;
18. A color-blind father married to a non-color-blind mom (non-carrier of colorblindness) can produce a color-blind son.
19. A person who is male but who prefers women’s clothing and does not have an abnormal XY or XX condition is known as;
20. According to some genetic researchers, the palindromic and repetitive sequences are found in the Y chromosome.
21. Genomic imprinting has implications for understanding early human development. It suggests that for mammals, two opposite-sex parents are necessary to produce a healthy embryo and placenta.
22. In mothers who are carriers of colorblindness even though they are not color blind some of their individual eye cone cells can express the trait. Also in female Calico cats the genes which produce color are found on the X chromosome and each hair cell expresses one X allele or the other giving rise to a random pattern of color in their fur. In both cases this is an example of:
23. This famous discoverer of the DNA structure made racist comments in the 1990s based on the idea that certain people groups were biologically inferior.
24. For the treatment of heart disease, statin drugs are used to.

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